Mercury levels in Perna viridis from the north coast of Sucre State, Venezuela

  • Rojas N
  • Lemus M
  • Rojas L
  • et al.
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Abstract

Mercury levels were determined in green mussels, Perna viridis, from two localities of Sucre State (Venezuela): Chacopata and Río Caribe. Specimens were captured in the intertidal zone from February to December 2003. They presented anteroposterior lengths ranging from 18 to 113 mm and were classified, according to their sexual maturity, as juveniles or adults. Mercury was determined by flame atomic absorption spectrophotometry and the method of analysis was validated using certified standards. Seasonal variations were significant at both sites. Highest mercury concentrations in the Chacopata specimens were recorded during February (mean value of 0.432 ± 0.472 µg g–1 d.w.) and in the Río Caribe specimens during April (mean value of 1.129 ± 0.763 µg g–1 d.w.). No relation between mercury levels and sexual maturity was found at Chacopata, but a relation was observed at Río Caribe. Immature organisms showed the highest concentrations (0.471 ± 0.679 and 0.688 ± 0.894 µg g–1 d.w. for males and females, respectively).

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Rojas, N., Lemus, M., Rojas, L., Martínez, G., Ramos, Y., & Chung, K. (2009). Mercury levels in Perna viridis from the north coast of Sucre State, Venezuela. Ciencias Marinas, 35(1). https://doi.org/10.7773/cm.v35i1.1362

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